15535415140 has 48 divisors (see below), whose sum is σ = 37292476032. Its totient is φ = 5325359616.

The previous prime is 15535415117. The next prime is 15535415153. The reversal of 15535415140 is 4151453551.

It is a junction number, because it is equal to n+sod(n) for n = 15535415096 and 15535415105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047819 + ... + 1062541.

It is an arithmetic number, because the mean of its divisors is an integer number (776926584).

Almost surely, 2^15535415140 is an apocalyptic number.

15535415140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15535415140 is an abundant number, since it is smaller than the sum of its proper divisors (21757060892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15535415140 is a wasteful number, since it uses less digits than its factorization.

15535415140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22276 (or 22274 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 15535415140 its reverse (4151453551), we get a palindrome (19686868691).

The spelling of 15535415140 in words is "fifteen billion, five hundred thirty-five million, four hundred fifteen thousand, one hundred forty".